Machine for grading soles, &amp;c.



B. F. HAHTWELL. MACHINE FOB GRADING soLEs, ac.

APPLICATIQN mtu MVM. i920.l

Patented Feb. 15,1921@ bom @www 5.5?

APPLICATION FILED MAY 24, |920.

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Y 75 m m2. m www 11T III* 5.,WL u 1H \zf, I @A m A. KN K U lill F. HARTWELL. MACHINE FOB GRADING SOLES, &c.

APPLICATION FILED MAY 24, |920.

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BENJAMIN F. HARTWELL, OF REVERE, MASSACH-USETTS.

MACHINE FOR GRADNG SOLES, Std.

Specification of Letters Patent.

Fatented Feb. i5, 192i.

Application inea May 2li, 1920. serial No. 383359.

To all @0.7mm t may concern: 4

Be it known that I, BENJAMIN F. HART- wnLL, a citizen of the United States, residing at Revere, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Machines for Grading Soles, &c., of which the following is a specification.

This invention relates to machines for grading articles, such as cut soles, by determining the exact thickness of the thinnest portion thereof. A machine of this general character is illustrated in my Patent No. 1,320,227, granted October 28, 1919. In that machine a primary and a secondary feelerbar arc located in the path of movement of the stock to be graded, both of said bars being employed to bring intoand put out of ac tion mechanism which rotates and controls a rotary register wheel.

The above patent is referred to because it is part ofthe prior art on which the present invention is an improvement, but reference thereto will not be necessary to understand the present improvements.

The improvement relates particularly to the wheel-rotatingmechanism, and has for its object-to render said mechanism operative to rotate the register-wheel, by an act of the operator, instead of automatically, Vas heretofore.` Y

The invention is embodied in a controlling mechanism including a manually movable member, normally in position to render said wheel-rotating mechanism` inoperative, and means coperating with said member to render the wheel-rotating mechanism operative when said member is displaced bythe operator, so that the register-wheel is rotated in either direction, to indicate the thickness ofthe thinnest portion of a cut sole or other stock passing between the gage and feeddisks. l

The invention is also. embodied in a movable stop which is normally held by said manually movable member in position to prevent the passage of stock between the disks, and releasable to permit such passage by a movement of thesaid member from its normal position.

Of the accompanying drawings forming a part of this speciiicatiorn- F ignre l is a side elevation, looking from the left side, showing portions of a grading machine embodying the invention, parts being broken away, and other parts shown in section.

Fig. 2 is a fragmentary side view, showing portions of the mechanism shown by Fig. l in slightly different positions.

Fig. 3 is a fragmentary plan view, showing the slide, the gage disk, and the fixed table which has guides to guide the stock to the disks. f

Fig. 4 is' a front elevation showing portions of the machine, parts being broken away, and other parts shown in section.

Fig. 5 is a view similar to portions of Fig. l, showing the slide moved from its normal position and the stop released.

Fig. 6 is a fragmentary side elevation, partly in section, showing a portion of the registering wheel, and portions of the wheel rotating, locking and releasing mechanisms.

Figs. 7, 8 and 9 are views corresponding respectively to Figs. l, 2 and 4, showing a different embodimentof the invention.

The same reference characters indicate the same parts in all of the figures.

The frame or housing 12 has bearings for the main shaft 14, to which is fixed the lower or gage disk 17, having a continuous peripheral groove 18, adapted to receive a feelerbar .20, the upper end of which normally projects from the groove at the highest portion of the disk in position to be depressed by stock moving over the disk. The upper feed disk, called the pressure disk 23, is fixed to the shaft 24, which is ournaled in a bearing on the rocker arm, called the carrier 25, this being mounted to oscillate on a shaft 28 and pressed downwardly by the spring 26. The disks 17 and 23 are positivelydriven simultaneously in opposite directions by gearing indicated by dotted circles in Fig. l.

Theearrier 25 constitutes an element of the registering mechanism, which includes a registering-wheel 62', a portion of which is shown in Fig. 6, and means for communieating rotary movements to said wheel from the carrier 25, when the latter is raised and lowered.

,As said registering mechanism may, so far as concernsmy present improvements, be of any preferred type, Whether as shown in my said prior patent, .or otherwise, detaileddescription thereof Will beunnecessary herein, it being suliicient to say that the registering- Wheel 62 is rotated by the cooperation with said rocker-arm of Wheel-rotating elements Y the racks 103 and 106 are the larger gear tionally by Fig. l.

104 meshing with Vthe rack 103, and the smaller gear 105 meshing with the rack 106. These connecting gears are shown conven- Other wheel-rotating elements are the shaft 61 (Fig. 6)', lixed at its upperend to` af ratchet 63, and having a helical groove S0 receiving a stud 81 in a vertical bar` 82 which is slidable in a ixed guide. The bar 82 is reciprocated by means including an arm 98 (Fig. 6)', fixedv to the rack bar 97, and cooperating parts, not necessary to set Jforth herein.

The ratchet Wheel 63 ixedto the register- Wheel 62 is shown in Fig. 6. Said Wheel 63 cooperates with a one-Way` locking mechanism which includes the feeler-bar 20.

lReferring now to the mechanism embodying my present improvements, fixed bed or table aV has a slot Z) (Figs. 3 and `5) through which the upper portion of the gage disk 17 projects. c represents a slide which is movable'horizontally in guides (Z on the .table ci, and has a rack e on its' under side.

rllheslid'e is normally held by a spring f, in the `position shown Vby Fig;` 1. g represents a movable stop, formed as an arm pivoted yat it to a fixed suppoi't and Vproject-ing throu'glia slot'vl (Fig. in the slide c. VThe swinging endv of the stop g has a recess j which is engaged by one end of the slot z', when the vslide is in its normal position, as shown by Fig. 1, so that the stop is locked, and held in position to prevent the stock,

' placedi on the table a, from entering between the gage and pressure disks.v The stop g is normally pressed upward by; a spring 7c.

The slide rack@ Vmesl'iesgivith a gear-segment mon anarm m which is i'ii'ied toa rock-shaft a journaled in a fixed bearing. An arm 'olixed to tlieshaft ais Vconnected at! its swinging end'with the meeting ends ottoggle links fg), p. The link p is pivoted to: a= liked earg (Fig. 1) and the link p is pivoted tov an ear fr on a block? s Which is vertically movable in fixed guides. The

block s constitutes a holder or carrier for the rack-bar106, and' the saidv rack-bar has a had at its upper end, adapted to contact bring the head t 'into VContact YWithV the Y carrier. Y

It will now be seen Vthatavhen stock to be graded is placed onthe table a, it cannot pass between the gage and pressure disks untilV the 'slide c is pushed forward. AThis cperation not only unlocks the stop g, but also raises the block s and rack-bai' 106, and thus renders the register-Wheel rotating mechanism operative, so that when the pressure disk 23 and its carrier 25 are moved by the passing stock, andV by variations in the thickness of the stock, the register-Wheel 62 is correspondingly tui-ned. Y

rlhe stopV g is depressed by the passing vstock until the latter has passedti'orn the' nip of the disks, so that the stop prevent-s the slide from returning toits normal` position While the stock is being graded. v

When the stock has passed from tl'iedisks,

the spring 7"' ret-urns the slide c to vits normal position, and breaks the toggle formed by the links p, p, so that thc block s and rackat' opposite Vsides ofzthe path ofthe stock,

and the sprii'i-glv guide/vbeing fixed at on@ cnd to a rigid arm w.

The slide omay'be ino-ved'by the operators hand, applied to the outer end or" the Y slide,or by the operatorls-oot, applied to a treadle (not shown) connected with the slide by a rodm, a bellicrank lever. jj, and a linka Theslidec constitutes a manually movable member of' the; controlling mechanism above described, and is Vnormally inf position to li'eiider the Wheel-rotating lmechanism inoperative.

" Figs. 7,18 and 9showj`a simpler embodinient of the controlling mechanism, which dilfers'fro'm. that previously-.described in .that the Vmanually movable `member is va lever c attached directly totlie 'rock-shaft" n, said lever having tWo arms 0'"V VandV 03', and being rori'nedandI arranged' tonot only render the Wheel-rotating mechanism alternatelyV operative and inoperative, but also to constitute astop Which prevents the enisoy trance of the stock between the disks when the lever is in its normal position, asshown by Fig. 7. A spring f yieldingly holds the lever c in its normal position, the lever arm c2 being raised above the level of the nip of the disks, and preventing the entrance oi' stockbetween the disks. Whenl the lever is manually moved to the position shown by Fig. 8, the arm c2 is depressed and guides the stock to the nip of the rolls. At the same time, the block or slide s is raised by the movement thus imparted by the lever c to the rock shaft n, and the toggle formed by the links p, p" sothat the block s and rackbar 106 are raised to bring the head t into Contact with the carrier 25, as shown by Fig. 8. The lever arm c3 is provided-with a handle c4 to facilitate movement of the lever by the operator.

In each of the described embodiments of' the invention, the rock-shaft a, its arm o, and the toggle formed bythe links p, p constitute means cooperating with the manually movable lmember to render the wheelrotating mechanism operative and inoperative. In each embodiment the controlling mechanism' includes a stop such as g (Fig. 1), or 02 (Fig. 7), which prevents the entrance of the stock between the disks when the manually movable member is in its normal position.l i

In the operation of the machine, a piece of stock is placed on the table a at the right of the stop g (Fig. 1). The stop g will prevent thestock being passed between the disks 17 and 23 so as to be carried through between them toward the left in said figure until said stop is displaced. Downward movement of the stop g is normally prevented by tlie slide c being held in the position shown in Fig. 1 by the action of the spring When the slide is moved into the position shown in Fig. 5, the end wall of the slot c' is withdrawn from the recess y', and as the stock is moved inwardly, the stop g will be rocked downward so as not to offer any obstruction to the passage of the stock between the disks 17, 23. Movement of the slide c from the position shown in Fig. 1 to that shown in Fig. 5 raises the block s and rack bar 106, as hereinbefore described, and the register wheel rotating mechanism is rendered operative. The register wheel rotating mechanism will be actuated by the passage of the stock between the disks 17, 23, causing a movement of the lever 25.

I claim:

1. A grading machine comprising a positively driven gage disk journaled in fixed bearings, a spring-pressed carrier movable toward and from the gage disk, a positively driven pressure disk journaled in said carrier and yieldingly pressed thereby toward the gage disk, the pressure disk and carrier being movable from the gage disk by interposed stock, register Wheel-rotating mech"- nism operable by movements of the carrier to rotate va register-wheel in either direction, and a controlling mechanism including a manually movable member normally in position to render said wheel-rotating mechanism inoperative, and means coperatmg vwith said member to render said wheel-rotating mechanism operative, when said mem- -ber is displaced from its normal position.

2. A grading machine comprising a positively driven gage disk ]ournaled in liXed bearings, a spring-pressed carrier movable Vtoward and from the gage disk, a positively and a controllingfmechanism including a manually movable member normally in position to render said wheel-rotating mechanism inoperative, and means cooperating Vwith said member to render said wheelrotating mechanism operative, when said member is displaced from itsnormal position, said controlling'mechanism including a stop which prevents the entrance of stock between the disks when said member is in its normal position, and permits such entrance when said member is displaced.

3. A. grading machine comprising a positively driven gage disk journaledin tired bearings, a spring-pressed carrier movable toward and from the gage disk, a positively driven pressure disk journaled in said carriei` and yieldingly pressed thereby toward the gage disk, the pressure disk and carrier being movable from the gage disk by interposed stock, register wheel-rotating mechanism operable by'movements of the carrier to rotate a register-wheel in either direction, and a controlling mechanism including a manually movable member Vnormally in position to render said wheel-rotating mechanism inoperative, a block movable in iiXed guides and carrying an element of said wheel-rotating mechanism, and connections between said block and said manually movable member, adapted to inoperatively conne the block and the element carried thereby, when said member is in its normal position, and to move said block and element to an operative position, when said member is displaced.

4.-. A. grading machine comprising a positively driven gage disk journaled in fixed bearings, a spring-pressed carrier movable toward and from the gage disk, a positively driven pressure disk journaled in said carrier and yieldingly pressed thereby toward the gage disk, the pressure disk and carrier being movable Jfrom the gage disk by interposed stock, register Wheel-rotating mechanism operable by movements of the Vcarrier to rotate a register-Wheel inV either direction, and a controlling mechanism including a manuallyinovable member normally 1in position tov render said- Wheelerotating mechanism inoperative, a block movable in to an operativeposition, when said member Ais displaced, said connections including a' toggle connected with; said block and 'With a fixed support, and means connecting the Vtoggle with said manually movable member to break-'the toggle, when said member is in its normal position, and render thevtoggle active, when the said member is displaced. Y Y Y 5. AjgradingY machine comprising a positively dri-ven gage disk journaled in fixed bearings, a spring-pressed carrier. movable toward and from the gage disk, a positively driven pressure disk journaled in said carrier and yieldingly pressed thereby toward Y the gage disk,the pressure disk andzcarrieibeing movable from the gage diskby interposed stock, register Wheel-rotating mechanism operable by movements-of the carrier to rotate a register-Wheel in either direction, and a controlling. mechanism including a manually signature;

l movable-slide normally in position to render said Wheel-rotating'mechanism inoperative, a'ii'ed,` guide for said slide, means coperating with saidslidey to render said Wheelrotating' mechanism operative, when the slide is displaced from itsnormal position, and a movable stopfnormally locked bythe ,slide imposition to prevent-the entrance-of 1 stock between the disks, and releasable to permit such passageby a movement-of the slide from its normal position.

6. A grading machine Vsubstantially as speciiiedlby claimb, the said; stop being o scllatable andprovided-With agreeess, and the-slide beingl formed toengage saidfrecess and thereby lock the stops in-itsV operative position. p

7. A grading machine substantially as specified by claim 5, the saidfslide-being provided with a rack, andthe said control- Ling mecha-nsmf including also a rock-shaft havinga: toothed` segmentalf'end meshing with: said rack, a toggle adapted-'Lobe' made operative. and inoperative bysaid Vrock-shaft, and a, block connectedfwith saidtoggle and carrying; an element of said ,Wheel.-rotatiiigv mechanism.

8.7A Vgrading machine substantially as specified by claim 5, the said stop, when displaced? by the stock, being adapted to lock the slide against return to its normal position. Y l g In testimony whereof I have aixed my BENJAMIN F. H-Ajnfiiivniiii soY 

